CVE-2020-17380

A flaw was found in QEMU. A heap-based buffer overflow vulnerability was found in the SDHCI device emulation support allowing a guest user or process to crash the QEMU process on the host resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

This flaw did not affect the following versions of QEMU as they did not include support for SDHCI device emulation:

• qemu-kvm-ma as shipped with Red Hat Enterprise Linux 7.
• qemu-kvm-rhev as shipped with Red Hat Virtualization and Red Hat OpenStack.
• qemu-kvm as shipped with Red Hat Enterprise Linux 6, 7, 8, and RHEL Advanced Virtualization.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.